The Adult Hip: An Anatomic Study

Abstract

A comprehensive anatomic, pathologic and radiographic study of the adult hip was undertaken to define bony landmarks which, when altered, are reliable indicators of disease. Methodology included radiography of cadaveric specimens and analysis of over 300 anteroposterior (AP) radiographs of normal adult hips. The diagnosis of protrusio acetabuli is warranted if the acetabular line projects medial to the ilioischial line by 3 mm or more in men and by 6 mm or more in women. In acetabular trauma, an AP and 2 oblique radiographs (30.degree. anterior oblique and 30-45.degree. posterior oblique) are required for complete evaluation. Characteristic alterations in the joint space allow accurate diagnosis of disease.